testnet4 support

[jlopp]

We're expecting testnet4 to launch in the coming months and be a part of the next Bitcoin Core release. PR is here: bitcoin/bitcoin#29775

[nikicat]

Draft patch for testnet4

[marcopeereboom]

Can we please make this a PR? Or even get it merged. Worst case we'll have to reset it.

[jcvernaleo]

@nikicat Could you make your draft into an actual PR? I'd love to review it and if tests and everything pass I think we are good to get it in to btcd asap. No need to wait that I can see.

[jcvernaleo]

Just fyi, we are actively working on a PR based on this. So stay tuned.

[Roasbeef]

Glanced at the draft patch above from @nikicat, looks like a good start, but is insufficient as testnet4 has entirely consensus rules that don't yet exist on mainnet:

• https:/bitcoin/bips/blob/a35650e14e5e3afce269efa0926233c30871b140/bip-0094.mediawiki#block-storm-fix
• https:/bitcoin/bips/blob/a35650e14e5e3afce269efa0926233c30871b140/bip-0094.mediawiki#time-warp-fix

[Impa10r]

Draft patch for testnet4

Hi, @nikicat this draft has wrong genesis hash?

Merkle root etc seems correct...

[nikicat]

Hi @Impa10r , probably it's wrong because AFAIK it changed several times during the discussion of the testnet4 BIP, so you should change it to the one from the BIP. I don't care about it because all I need is RpcClient support for testnet4.

[Impa10r]

@nikicat thanks, no problem. I think I got it running with LND

[0xdavid7]

Currently it doesn't support testnet4 right? Could anyone help me update the status? Thank you

[jcvernaleo]

Unfortunately, we are still working on it. We got partway through the difficulty bomb code and some other priorities popped up.

We should have something soon.

[0xdavid7]

Thank you so much 😆